METHOD FOR RECOVERING SULFURIC ACID OF WASTE GAS TREATMENT SYSTEM AND DEVICE FOR RECOVERING SULFURIC ACID

摘要

PROBLEM TO BE SOLVED: To provide a method and a device for recovering sulfuric acid in a waste gas treatment system to easily recover sulfuric acid and reduce the cost of equipment. SOLUTION: In heating and recovering a carbon-based adsorbent of a desulfurization device 3 in a carbon-based adsorbent recovering device 8, a desorption gas containing SO3 carrier gas is cooled to the room temperature in a device 10 and passed through a layer filled with active carbon fiber 11a to recover sulfuric acid, simplify the former recovering system, in which water control is done at the first, and make the device and the spaces for recovering more compact than usual.